我有2个子视图A和B。这两个子视图都位于ScrollView中。在ScrollView,首先放置A,然后放置B。子视图包含uiimageview。B子视图仅包含UitextField。在A子视图中,我可以使用UIImagePickerController为Gallery上载图像。我需要在uiimageView上上载图像之前无需显示“A
“subview.B首先出现在UIScrollView.if上传图像上。subview首先出现在uiimageView上,然后放置B subview。
- (void)viewDidLoad
{
[super viewDidLoad];
scrol=[[UIScrollView alloc]init];
scrol.frame=CGRectMake(0, 100, self.view.frame.size.width, 250);
scrol.delegate = self;
scrol.scrollEnabled = YES;
[self.view addSubview:scrol];
scrol.contentSize =CGSizeMake(221, 650);
scrol.backgroundColor=[UIColor blueColor];
A=[[UIView alloc]init];
A.frame=CGRectMake(10, 10, 221, 100);
A.backgroundColor=[UIColor yellowColor];
[scrol addSubview:A];
B=[[UIView alloc]init];
B.frame=CGRectMake(10, 120, 300, 100);
B.backgroundColor=[UIColor grayColor];
[scrol addSubview:B];
firstimage1=[[UIImageView alloc]init];
firstimage1.frame=CGRectMake(5, 10, 180, 80);
firstimage1.backgroundColor=[UIColor redColor];
//firstimage1.image = [UIImage imageNamed:@"Defult.png"];
[A addSubview:firstimage1];
UITextField *field1=[[UITextField alloc]init];
field1.frame=CGRectMake(10, 10, 221, 30);
field1.backgroundColor=[UIColor whiteColor];
[B addSubview:field1];
UITextField *field2=[[UITextField alloc]init];
field2.frame=CGRectMake(10, 50, 221, 30);
field2.backgroundColor=[UIColor whiteColor];
[B addSubview:field2];
getImages=[[UIButton alloc]init];
getImages.frame=CGRectMake(0, 0, 28, 25);
[self.view addSubview:getImages];
[getImages addTarget:self action:@selector(aImages:) forControlEvents:UIControlEventTouchDown];
[getImages setBackgroundImage:[UIImage imageNamed:@"Defult.png"] forState:UIControlStateNormal];
img1 = [[UIImagePickerController alloc] init];
img1.delegate = self;
img1.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
img1.delegate = self;
if(firstimage1.image){
firstimage1.hidden=NO;
A.hidden=NO;
//if Image is there just set the A_View as your need.
[A setFrame:CGRectMake(10, 10, 221, 100)];
//and set B_View as per the Y co ordinate + height of A_View
[B setFrame:CGRectMake(0, A.frame.origin.y+A.frame.size.height+10, 300, 100)];
}
else{
firstimage1.hidden=YES;
//And if image not there make it hidden then make Aview hide and put your Bview at place of AView
A.hidden=YES;
[B setFrame:CGRectMake(10, 10, 300, 100)];
}
}
-(void)aImages:(id)sender
{
actionSheet11 = [[UIActionSheet alloc]
initWithTitle:@"pick phot"
delegate:self
cancelButtonTitle:@"back"
destructiveButtonTitle:nil
otherButtonTitles:@"gallery", @"camera",
nil];
actionSheet11.actionSheetStyle = UIActionSheetStyleBlackTranslucent;
[actionSheet11 showInView:self.view];
}
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
img1.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
int i = buttonIndex;
switch (i) {
case 0:
img1.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:img1 animated:YES completion:^{}];
break;
case 1:
img1.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:img1 animated:YES completion:^{}];
break;
default:
actionSheet11.hidden=YES;
}
}
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissModalViewControllerAnimated:YES];
firstimage1.image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
}
在图像加载之前,无需在UIScrollView中显示A子视图和B。在使用UIImagePickerController加载图像视图之后,A首先出现,然后放置B。我的代码是在图像加载前,B首先出现。但在上载图像A子视图时,它现在显示
请帮我谢谢高级
